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Fiske® 210 Micro-Sample Osmometer

Fiske® 210 Micro-Sample Osmometer

Fiske Associates Osmometer, Model 210, for Osmolality Measurement

The Fiske Associates Model 210 Micro Osmometer determines the osmolality of solutions using freezing point depression (FPD). Ideal for serum, urine or other bodily fluids in clinical applications; and media or formulations in pharmaceutical, biotech or industrial applications.

Automated, single sample, designed to process a 20 µL sample, and 90-second test time. The Model 210 provides the best accuracy and precision in the market today.

  • 20 µL sample size is ideal for applications where the sample quantity is limited.
  • Unparalleled ease of use
  • Solid state cooling
  • Internal diagnostics
  • Ergonomic, compact design
  • On-board statistical analysis
  • Results recall up to the last 30 tests
  •  Multi-language operation
  • Automated calibration
  • Hot-Line® Technical Service available 24/7

Advanced Instruments also supplies ControLine™ Products

  • Accuref 290 mOsmol Reference Solution
  • Protinol® Protein-Based Controls
  •  Renol Urine™ Osmolality Controls
  • Osmolality Linearity Set

Method – Freezing Point Depression Osmometry
Osmometry measures the total molar concentration of dissolved solids in any solution. The freezing point of a solution is depressed in direct relation to the amount of solute in solution. Click here for a more detailed explanation.

Uses and Applications – Emergency Medicine, Internal Medicine/Endocrinology, Urology/Renal Function, Surgery/Critical Care, Obstetrics/Gynecology, Pharmacy, General Quality Control. Click here for a more detailed explanation.

Fiske® Model 210 Osmometer Technical Specifications


Power Requirement: 100 to 240 VAC (50/60 Hz)
Fuses (2):
250V time delay (Type T): 1.25-Amp
Power Consumption: 60 Watts
Memory Backup: Integral lithium cell; 10-year life (typical); (not user-replaceable)

Sample Volume: 20 μL

Sample Capacity: Single sample

Readout: 2 line by 24-character vacuum fluorescent display

Units: mOsm/kg H2O

Range: 0 to 2000 mOsm/kg H2O

Resolution: 1 mOsm/kg H2O

Communications: DTE EIA-232/V.24 (RS-232); parallel printer port and optional barcode scanner

Performance at Reference Conditions1

Linearity: Less than ±1% from a straight line between 0 and 2000 mOsm/kg H2O
Repeatability: 0 to 400 mOsm: ±2 mOsm/kg (1 S.D.) 400 to 2000 mOsm: ±0.5% (1 S.D.)
Drift: Less than 1 mOsm/kg H2O per month

Performance Over Operating Conditions

Temperature Effects: Less than 1 mOsm/kg H2O for every 5°C (9°F) ambient temperature change
Operating Conditions Temperature: 18°C to 35°C (64°F to 95°F)
Humidity: 5 to 80% relative humidity (non-condensing)
Storage Temp.: -40°C to +45°C (-40°F to +113°F)
Start-up Time: 30 seconds from power-on
Test Time: 90 seconds

30.5 cm x 30.5 cm x 24.1 cm
(12.0" H x 12.0" W x 9.5" D)

Net:  6.2 kg (13.6 lbs.)
Shipping:  9.3 kg (20.5 lbs.)

Warranty: One-year limited warranty on workmanship and all parts except glass, plastic, and parts warranted by their makers.